WASHINGTON (Reuters) -Democratic U.S. Senator Edward Markey on Tuesday urged President Donald Trump not to resume explosive ...

Hydronuclear experiments, barred globally since the 1990s, may lie behind President Trump’s call last month for the United ...

Southern Nevada’s Congressional delegation is calling on the Trump administration to “reaffirm” the United States’ ...

Trump’s message at the end of last month is that the U.S. is no longer willing to ignore obvious dangers, especially if China ...

The quiet expansion of Beijing’s remote nuclear weapons complex, Lop Nur, points to years of preparation for a potential ...

Discover the dramatic story behind the Tsar Bomba, the largest nuclear weapon ever detonated. This video explores its Cold ...

The trial included first-of-its-kind thermal preconditioning of the bomb before carriage on an F-35 fighter jet.

Donald Trump is pushing to resume testing nuclear weapons, leading Vladimir Putin to do the same. The legacy of nuclear tests is devastating.

US Air Force Lockheed Martin F-35A fighters have completed integration tests with inert B61-12 nuclear gravity bombs, proving ...

The Energy Department and Air Force in August successfully carried out the first tests dropping unarmed B61-12 nuclear ...

North Korea has hurtled along its path of nuclear tests and trials of delivery systems, despite years of sanctions.